1005501550709 has 2 divisors, whose sum is σ = 1005501550710. Its totient is φ = 1005501550708.

The previous prime is 1005501550687. The next prime is 1005501550727. The reversal of 1005501550709 is 9070551055001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 900025997809 + 105475552900 = 948697^2 + 324770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005501550709 - 2¹⁶ = 1005501485173 is a prime.

It is a super-2 number, since 2×1005501550709² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005501550759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502750775354 + 502750775355.

It is an arithmetic number, because the mean of its divisors is an integer number (502750775355).

Almost surely, 2^{1005501550709} is an apocalyptic number.

It is an amenable number.

1005501550709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005501550709 is an equidigital number, since it uses as much as digits as its factorization.

1005501550709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39375, while the sum is 38.

The spelling of 1005501550709 in words is "one trillion, five billion, five hundred one million, five hundred fifty thousand, seven hundred nine".